87630380

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{2789}}^1$

素因数の和:4369

約数の個数: 24

約数和(自身を含む): 184206960

約数和(自身を除く): 96576580

約数列:

[1, 2, 4, 5, 10, 20, 1571, 2789, 3142, 5578, 6284, 7855, 11156, 13945, 15710, 27890, 31420, 55780, 4381519, 8763038, 17526076, 21907595, 43815190, 87630380]

約数ペア:

[(1, 87630380), (2, 43815190), (4, 21907595), (5, 17526076), (10, 8763038), (20, 4381519), (1571, 55780), (2789, 31420), (3142, 27890), (5578, 15710), (6284, 13945), (7855, 11156)]